Distributed Fibre Optic Sensor Market Size, Share, Growth, and Industry Analysis, By Type (Rayleigh Scattering Based Distributed Sensor,Brillouin Scattering Based Sensor,Raman Scattering Based Sensor,Interferometric Distributed Optical-Fibre Sensor,Distributed Fibre Bragg Grating Sensor), By Application (Strain Sensing,Temperature Sensing,Acoustic/Vibration Sensing,Pressure Sensing,Others), Regional Insights and Forecast to 2035

Distributed Fibre Optic Sensor Market Overview

The global Distributed Fibre Optic Sensor Market size is projected to grow from USD 2080.42 million in 2026 to USD 2354.62 million in 2027, reaching USD 6339.08 million by 2035, expanding at a CAGR of 13.18% during the forecast period.

The Distributed Fibre Optic Sensor Market is witnessing robust deployment in infrastructure and industrial sectors, with over 35 000 km of sensing fiber installed globally as of 2024. In 2023, the Raman scattering approach accounted for approximately 35.1 % of total distributed sensor installations by technology. Meanwhile, temperature sensing applications commanded close to 45.8 % share among all distributed sensing usage in 2024. In North America, which led global adoption in 2024 with roughly 30.7 % share of deployments, usage in pipeline monitoring and structural health monitoring remains dominant.

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Key Findings

• Key Market Driver: The oil & gas sector contributes around 38 % to total distributed fibre optic sensor usage due to pipeline leak detection and downhole monitoring needs.
• Major Market Restraint: Technical installation challenges limit uptake in about 22 % of potential civil infrastructure projects.
• Emerging Trends: Hybrid sensing combining Raman and Brillouin methods is expected in 28 % of new deployments.
• Regional Leadership: North America held approximately 30.7 % share of global distributed fibre optic sensor deployments in 2024.
• Competitive Landscape: Top five suppliers account for nearly 48 % of global installed units as of 2023.
• Market Segmentation: Temperature sensing holds about 45.8 % of segment share; strain sensing follows with approximately 30 %.
• Recent Development: In 2024–2025, ~25 % of new contracts include integrated AI analytics for fiber networks.

Distributed Fibre Optic Sensor Market Latest Trends

In recent years, the Distributed Fibre Optic Sensor Market (also described in searches like Distributed Fibre Optic Sensor Market Report and Distributed Fibre Optic Sensor Market Trends) has seen significant traction in long-distance structural monitoring projects. For example, by mid-2024, more than 20,000 km of sensing cable had been deployed for railway and bridge monitoring globally. The adoption in oil & gas is continuing as over 300 pipeline segments in North America are now monitored continuously using DFOS. In the telecommunications sector, nearly 15 % of new fiber runs include distributed sensing capability. In Asia, countries such as China and India are deploying over 5,000 km each annually in smart city and metro projects.

Distributed Fibre Optic Sensor Market Dynamics

The Distributed Fibre Optic Sensor Market Dynamics revolve around strong demand in infrastructure, oil & gas, and utilities, with over 40,000 km of fibre deployed globally by 2024 for continuous monitoring. Drivers include safety concerns, asset integrity management, and the ability to detect strain, temperature, and vibration anomalies in real time.

DRIVER

"Rising energy and infrastructure monitoring demand".

As governments and private actors push for asset integrity, over 40,000 km of new pipelines and power lines are scheduled for installation globally by 2025, many specifying continuous monitoring. DFOS is well suited: over 60 % of new structural projects globally now include fibre‐based monitoring. In the oil & gas vertical, more than 300 pipeline leak events have been averted through DFOS installation, encouraging further adoption.

RESTRAINT

"High complexity and installation cost."

Installation of distributed fibre sensor networks often requires specialized splicing and calibration, leading to ~20 % higher project cost relative to conventional sensors. In many legacy sites, up to 35 % of potential sites are disqualified due to fiber access or routing difficulty. In building rehabilitation, approximately 22 % of structures face internal access issues that complicate DFOS installation. In high-temperature or harsh chemical environments, about 15 % of sensor fibers degrade if not properly selected.

OPPORTUNITY

"Integration with predictive analytics and AI."

Around 25 % of new DFOS projects now include AI or machine learning modules for anomaly detection. B2B software vendors report ~1,500+ algorithm deployments tied to sensing fiber by 2024. In the predictive maintenance sector, infrastructure operators that adopt DFOS with analytics report up to 15 % reduced downtime annually. Nearly 20 % of smart grid tenders in 2024 demanded packaged DFOS + analytics solutions.

CHALLENGE

"Standardization and interoperability concerns."

Variation in protocols and vendor formats leads to compatibility issues: about 28 % of installed systems cannot be easily integrated with central SCADA or IoT platforms. In multi-vendor deployments, nearly 17 % of projects experienced interface mismatches requiring work-around firmware. In field maintenance, about 12 % of failures are due to standard mismatch between fiber interrogators.

Distributed Fibre Optic Sensor Market Segmentation

The Distributed Fibre Optic Sensor Market is segmented by type and application. By type, key categories include Rayleigh scattering based distributed sensors (~25 % installations), Brillouin scattering (~22 %), Raman scattering (~35 %), interferometric distributed optical-fibre sensors (~12 %), and distributed fibre Bragg grating sensors (~6 %). By application, segments include strain sensing (about 30 % share), temperature sensing (leading with ~45.8 %), acoustic / vibration sensing (~15 %), pressure sensing (~6 %), and others (~3 %). These segmentation divisions are commonly used in Distributed Fibre Optic Sensor Market Share and Distributed Fibre Optic Sensor Market Analysis to guide vendors and B2B buyers.

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BY Type

• Rayleigh Scattering Based Distributed Sensor: Rayleigh scattering based sensors rely on backscatter intensity fluctuations due to microstructural variations in optical fiber and are widely deployed over ~10,000 km of sensing fiber globally in 2023. This type accounts for around 25 % of new installations in civil infrastructure and structural health monitoring. In urban monitoring, Rayleigh sensors detect microstrain changes in bridges and tunnels, often integrated into retrofit schemes: more than 500 projects used Rayleigh sensors between 2022 and 2024. Their strength lies in simplicity and low cost, though range is limited to ~40 km per channel. They are often bundled with hybrid interrogators—by 2024, ~220 hybrid interrogator units supporting Rayleigh + Brillouin or Rayleigh + Raman were shipped globally.
• Brillouin Scattering Based Sensor: Brillouin scattering sensors exploit frequency shift from acoustic phonons and are suited for distributed strain and temperature measurement over long distances. They represented about 22 % of distributed fiber sensor deployments in 2023. In pipeline networks, over 2,000 km of fiber use Brillouin variants for simultaneous strain/temperature profiles. They support ranges up to 50 km or more under proper amplification schemes. In power cable corridors, more than 300 km of Brillouin fiber has been used to monitor conductor sag and faults. Their adoption in telecom ducts is rising, with ~150 new deployments in 2024. The Brillouin method often complements Raman systems to extend reach in large networks.
• Raman Scattering Based Sensor: The Raman scattering based technique is among the most dominant in distributed systems, accounting for ~35.1 % of deployments in 2024. It is favored for temperature sensing in long pipelines, power lines, and tunnels. Over 3,000 km of fiber in oil & gas infrastructure is monitored using Raman sensors globally. Because Raman responds to anti-Stokes and Stokes intensity ratio, it delivers direct temperature reading. In metro and subway systems, ~200 km of fiber were installed in 2023 using Raman distributed sensors. Its drawback is lower strain sensitivity, so it is commonly paired with Brillouin or Rayleigh in hybrid systems: by 2024, ~180 hybrid Raman + Brillouin interrogators were shipped.
• Interferometric Distributed Optical-Fibre Sensor: Interferometric distributed sensors use phase interference to measure dynamic signals such as vibrations and acoustics, often deployed in ~8,000 km of fiber for perimeter security and pipeline intrusion detection by 2023. They contribute approximately 12 % of new applications, particularly in security and defense verticals. In oil & gas, over 250 pipeline segments use interferometric sensors for acoustic leak detection. In infrastructure security, more than 100 km of perimeter fiber is deployed in sensitive sites. These sensors support high temporal resolution (milliseconds) and are widely used in security, intrusion, and vibration zones in industrial plants.
• Distributed Fibre Bragg Grating Sensor: Distributed fibre Bragg grating (FBG) sensors use multiple FBGs along fiber as quasi-distributed points. As of 2024, FBG variants account for about 6 % of distributed installations. Many railway and structural monitoring systems use FBG arrays for discrete point sensing along long fiber spans: more than 1,500 FBG sensors are in operation in bridges worldwide. In tunnels, FBG networks of over 100 sensors per project are common. FBG systems offer high accuracy and multiplexing ease but lack continuous distribution, so they are usually reserved for hybrid deployment in conjunction with continuous DFOS.

BY APPLICATION

• Strain Sensing: Strain sensing as an application constitutes around 30 % of all distributed fibre sensor usage by 2024. It is critical in structural health monitoring of bridges, buildings, pipelines, and dams. In North America and Europe, over 5,000 bridges employ DFOS for strain monitoring. In oil & gas, over 1,200 km of pipelines use strain detection to track deformation and integrity. In railway track monitoring, about 800 km of fiber is dedicated to strain sensing networks. Because strain variations often precede failures, many preventive maintenance contracts cite strain sensor requirements. In retrofit civil projects, approximately 18 % of allowable tenders specify strain sensing as mandatory. Many B2B buyers refer to Distributed Fibre Optic Sensor Market Insights sections focused on strain sensing.
• Temperature Sensing: Temperature sensing is the leading application, accounting for approximately 45.8 % of distributed sensor installations in 2024. This is particularly relevant in pipelines, power cables, tunnels, and process plants. In oil & gas, over 4,000 km of pipeline is monitored via distributed temperature fiber. In power transmission, about 600 km of fiber cables in high-temperature zones use distributed temperature sensing. In district heating systems, over 500 km of fiber is installed. In telecom ducts, ~300 km includes temperature monitoring embedded. In industrial process plants, up to 30 % of new DFOS contracts are purely for thermal leak detection.
• Acoustic / Vibration Sensing: Acoustic and vibration sensing represent roughly 15 % of application share. These sensors detect leaks, intrusions, and mechanical faults. In pipelines, over 200 leaks have been located using acoustic DFOS. In security perimeters, more than 150 km of fiber is used for intrusion detection. In rotating equipment zones, ~120 km of fiber is deployed. In rail vibration monitoring, ~80 km tracks use DFOS for train detection and in-cab signaling. Many integrators specify acoustic monitoring in ~10 % of industrial site contracts.
• Pressure Sensing: Pressure sensing holds around 6 % share of distributed applications. While direct pressure via optical fiber is rare, pressures are often inferred via strain/temperature models. In pipeline manifold zones, ~50 km of fiber is installed to supplement pressure instrumentation. In dam and levee systems, ~30 km of fiber helps infer pressure loads. In HVAC ducts, a few pilot projects (over 10 km) have explored pressure anomaly mapping. The niche nature and model dependence limit direct pressure sensing usage.
• Others: Other applications — including chemical sensing, flow detection, corrosion monitoring — account for about 3 % of deployments. In recent years, ~20 km of fiber was deployed to detect hydrogen leaks in pipelines. In oil & gas, some 10 km of fiber is used for multiparameter sensing (e.g. gas concentration). In water utilities, ~15 km is used for leakage detection in municipal networks. These experimental uses are gradually entering B2B contracts under Distributed Fibre Optic Sensor Market Opportunities.

Regional Outlook for the Distributed Fibre Optic Sensor Market

Globally, North America leads with about 30.7 % share in distributed fibre optic sensor deployments, followed by Asia-Pacific (~28 %), Europe (~25 %), and Middle East & Africa (~10 %). Latin America and rest of world share the remainder (~6.3 %). Demand is highest in energy, transport, and infrastructure sectors. The Distributed Fibre Optic Sensor Market Regional Outlook shows significant variation in adoption patterns across geographies.

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NORTH AMERICA

North America dominates distributed fibre optic sensor deployment, capturing approximately 30.7 % of global share in 2024. The region has over 12,000 km of fiber installed for structural and pipeline monitoring. The U.S. market alone was valued at USD 307.23 million in 2023, accounting for the lion’s share of national adoption. More than 600 projects in oil & gas and infrastructure use DFOS systems. Canada followed with ~12 % of the region’s deployments, deploying over 1,500 km of fiber. Mexico and Latin extension projects contributed ~8 % in 2023 with ~800 km deployed.

The North America distributed fibre optic sensor market is projected at USD 551.45 million in 2025, expected to expand to USD 1,789.08 million by 2034, holding a 30.0% share and achieving a 13.22% CAGR, fueled by strong oil, gas, and civil infrastructure projects.

North America - Major Dominant Countries in the Distributed Fibre Optic Sensor Market

• United States: Leads with 65% share, valued at USD 358.44 million (2025) rising to USD 1,162.90 million (2034), supported by 13.25% CAGR, driven by heavy investments in pipelines, defense security, and structural health monitoring.
• Canada: Holds 15% share, with market size USD 82.72 million in 2025, projected to reach USD 268.36 million by 2034, advancing at 13.18% CAGR, supported by adoption in utilities, smart grids, and infrastructure monitoring.
• Mexico: Accounts for 10% share, valued at USD 55.15 million (2025), forecasted to USD 178.91 million by 2034, growing at 13.30% CAGR, driven by growing infrastructure and oil pipeline safety requirements.
• Brazil (regional trade influence): Represents 6% share, with USD 33.08 million in 2025 expected to hit USD 107.34 million by 2034, supported by 13.15% CAGR, with gradual adoption in civil projects and energy.
• Chile (regional trade partner): Smaller with 4% share, valued at USD 22.06 million in 2025, rising to USD 71.56 million by 2034, advancing at 13.21% CAGR, supported by demand for water treatment and seismic monitoring.

EUROPE

In Europe, around 25 % of global DFOS deployment occurs, with more than 8,500 km of fiber in use across civil infrastructure, railways, and energy sectors. Germany leads with about 20 % of European share, employing over 1,700 km in bridges and tunnels. The U.K. follows with ~15 % share and over 1,300 km of fiber. France, Spain, and Italy together represent ~25 % of European deployment, combining for more than 2,000 km. The rising adoption in smart grids and tunnel monitoring led to 100+ DFOS projects funded under EU infrastructure grants. High speed rail corridors in Europe incorporate over 500 km of distributed sensors.

The North America distributed fibre optic sensor market is projected at USD 551.45 million in 2025, expected to expand to USD 1,789.08 million by 2034, holding a 30.0% share and achieving a 13.22% CAGR, fueled by strong oil, gas, and civil infrastructure projects.

Europe - Major Dominant Countries in the Distributed Fibre Optic Sensor Market

• United States: Leads with 65% share, valued at USD 358.44 million (2025) rising to USD 1,162.90 million (2034), supported by 13.25% CAGR, driven by heavy investments in pipelines, defense security, and structural health monitoring.
• Canada: Holds 15% share, with market size USD 82.72 million in 2025, projected to reach USD 268.36 million by 2034, advancing at 13.18% CAGR, supported by adoption in utilities, smart grids, and infrastructure monitoring.
• Mexico: Accounts for 10% share, valued at USD 55.15 million (2025), forecasted to USD 178.91 million by 2034, growing at 13.30% CAGR, driven by growing infrastructure and oil pipeline safety requirements.
• Brazil (regional trade influence): Represents 6% share, with USD 33.08 million in 2025 expected to hit USD 107.34 million by 2034, supported by 13.15% CAGR, with gradual adoption in civil projects and energy.
• Chile (regional trade partner): Smaller with 4% share, valued at USD 22.06 million in 2025, rising to USD 71.56 million by 2034, advancing at 13.21% CAGR, supported by demand for water treatment and seismic monitoring.

ASIA-PACIFIC

Asia-Pacific accounts for approximately 28 % of global DFOS installations, with over 10,000 km deployed by 2024. China is the regional leader, accounting for ~40 % of APAC share, with more than 4,000 km of fiber across metro, industrial, and utility projects. India holds ~20 % of regional deployment, surpassing 2,000 km in smart city and pipeline monitoring. Japan contributes ~15 % with 1,500+ km of fiber in high-precision infrastructure. South Korea and Australia extend ~12 % combined with ~1,200 km of deployments.

The Asia distributed fibre optic sensor market is valued at USD 625.01 million in 2025, forecasted to expand to USD 2,023.52 million by 2034, holding a 34.0% share and recording the highest CAGR of 13.25%, driven by industrialization, urbanization, and large-scale infrastructure projects.

Asia - Major Dominant Countries in the Distributed Fibre Optic Sensor Market

• China: Leads Asia with 40% share, valued at USD 250.00 million (2025), expected to rise to USD 809.41 million by 2034, advancing at 13.28% CAGR, fueled by rail, energy, and mega infrastructure projects.
• India: Accounts for 22% share, market size USD 137.50 million in 2025, forecasted at USD 445.17 million by 2034, with 13.30% CAGR, driven by smart cities, oil pipelines, and telecom expansion.
• Japan: Represents 15% share, valued at USD 93.75 million (2025), projected to grow to USD 303.53 million by 2034, recording 13.22% CAGR, supported by advanced manufacturing and high-speed rail monitoring.
• South Korea: Holds 12% share, valued at USD 75.00 million (2025), forecasted to USD 242.82 million by 2034, achieving 13.24% CAGR, led by semiconductor facilities and civil infrastructure projects.
• Indonesia: Contributes 11% share, valued at USD 68.75 million in 2025, projected at USD 222.58 million by 2034, advancing with 13.26% CAGR, supported by urban development and renewable energy.

MIDDLE EAST & AFRICA

Middle East & Africa (MEA) commands about 10 % of global DFOS deployment, with approximately 3,500 km of fiber in service. In the Middle East, Saudi Arabia accounts for ~30 % of MEA share, deploying over 1,050 km in oil & gas and pipeline projects. UAE contributes ~20 % share with ~700 km in infrastructure and utility monitoring. In Africa, South Africa leads with ~15 %, or ~525 km, used in mining, water infrastructure, and transportation.

The Middle East and Africa distributed fibre optic sensor market is valued at USD 165.93 million in 2025, projected to reach USD 494.63 million by 2034, capturing a 9.0% share with a 13.10% CAGR, driven by oil, gas, and utility monitoring.

Middle East and Africa - Major Dominant Countries in the Distributed Fibre Optic Sensor Market

• Saudi Arabia: Leads with 30% share, valued at USD 49.78 million (2025), growing to USD 148.39 million by 2034, supported by 13.16% CAGR, dominated by oil & gas pipeline monitoring.
• United Arab Emirates: Accounts for 22% share, valued at USD 36.50 million (2025), forecasted to USD 108.82 million by 2034, registering 13.14% CAGR, driven by mega infrastructure and smart city projects.
• South Africa: Holds 18% share, market size USD 29.87 million in 2025, projected to reach USD 89.03 million by 2034, reflecting 13.13% CAGR, supported by mining, utilities, and water monitoring.
• Nigeria: Represents 16% share, valued at USD 26.55 million (2025), forecasted at USD 79.14 million by 2034, achieving 13.11% CAGR, led by oil, utilities, and civil monitoring.
• Egypt: Holds 14% share, valued at USD 23.23 million in 2025, projected at USD 69.25 million by 2034, advancing at 13.09% CAGR, with growing applications in civil and industrial sectors.

List of Top Distributed Fibre Optic Sensor Companies

• Sensor Highway
• AFL
• Lockheed Martin
• OSENSA
• Brugg Kabel
• QinetiQ
• FISO
• Omnisens

Omnisens: Holds approximately 18 % of global installed base (fiber km) and leads in long-distance pipeline and structural health monitoring contracts.

AFL: Captures around 14 % share in global installed fiber length, with strong presence in power utility and telecom infrastructure segments.

Investment Analysis and Opportunities

Investment in the Distributed Fibre Optic Sensor space is gaining momentum in infrastructure, energy, and smart city domains. In 2023–2024, venture and private equity investment in fiber-based sensing startups exceeded USD 150 million globally. Many B2B integrators and infrastructure OEMs are now creating alliances to bundle DFOS modules — over 20 such partnerships have been announced in 2024. Regions investing heavily include Asia (especially China and India) where planned fiber deployment increments are over 5,000 km annually, creating demand for sensor capacity. In Europe, more than €500 million in infrastructure funds in 2024–2025 tied at least 10 % of funding to intelligent sensing provisions.

Middle East sovereign funds are committing to fiber surveillance infrastructure in new energy corridors; Saudi projects alone plan ~1,000 km of DFOS inclusive fiber in upcoming pipelines. The label Distributed Fibre Optic Sensor Market Opportunities is common in investment pitch decks, reflecting investor appetite. B2B buyers now expect sensor modules bundled into fiber contracts — already ~12 % of new fiber contracts in 2024 included DFOS options. This bundling model reduces incremental installation cost by ~8 %, encouraging higher uptake. With more than 5,000 km of new fiber infrastructure targeted in smart grids globally, distributed sensing becomes a value-added differentiator. The integration of analytics and AI into fiber sensing is anticipated to attract further private equity funding and strategic acquisitions across telecom, infrastructure, and energy domains.

New Product Development

Innovation in distributed fibre optic sensors continues at a rapid pace, with several next-generation technologies introduced between 2023 and 2025. One development is a hybrid Raman-Brillouin interrogator, launched in 2024, enabling temperature and strain detection in a single fiber over ~50 km range. A company unveiled a micro-integrated interrogator module in 2023 that reduced module size by ~35 % while supporting multiplexing up to 128 channels. In 2025, a low-power portable interrogator was introduced, consuming ~5 W and capable of field deployment in remote areas. Another innovation launched in late 2024 uses AI at the edge, embedding anomaly detection directly into fiber interrogator modules and analyzing >1,000 data points per second.

In mid-2025, a new fiber coating resistant to high temperature and abrasion was commercialized, protecting sensors in harsh oil & gas environments (working up to 180 °C). Several vendors introduced plug-and-play fiber modules in 2023 that reduce splicing needs by ~20 %. B2B buyers now demand sensors supporting IEEE-compliant interfaces — more than 25 % of new modules provide REST or OPC UA interfaces. The mention Distributed Fibre Optic Sensor Market Growth appears increasingly alongside product launch announcements, signaling close linkage between new development and market momentum. These innovations reduce barriers, expand deployment scope, and attract more B2B adoption in power, infrastructure, and oil & gas sectors.

Five Recent Developments

• In 2024, a major infrastructure firm awarded a contract for 350 km of distributed sensing fiber in a U.S. high-speed rail corridor equipped with hybrid Raman-Brillouin sensing modules.
• In 2023, a sensor vendor shipped 1,200 new interrogator units globally, increasing installed base by ~15 %.
• In 2025, a utility company in Asia adopted 500 km of fiber with onboard AI analytics in a grid modernization project.
• In 2024, a new micro-integrated DFOS module was introduced reducing footprint by 35 % while supporting up to 128 sensor channels.
• In 2025, a launch of a high-temperature fiber coating rated for 180 °C extended DFOS usage in downstream oil & gas environments.

Report Coverage of Distributed Fibre Optic Sensor Market

This Distributed Fibre Optic Sensor Market report covers the global landscape by fiber types, scattering technologies, applications, vertical end-users, and geographic regions, focusing on deployment metrics, installed fiber length, unit shipments, and project counts. It addresses segmentation by Rayleigh, Brillouin, Raman, interferometric, and FBG types, alongside applications in strain, temperature, acoustic/vibration, pressure, and others, offering breakdowns in percentage shares and deployment kilometers. Regional performance is evaluated across North America, Europe, Asia-Pacific, Middle East & Africa, and Latin America, reflecting that North America commands ~30.7 % share, Europe ~25 %, APAC ~28 %, and MEA ~10 %.

The report also highlights top company shares — for example, Omnisens (~18 %) and AFL (~14 %) by installed fiber length — and details partnerships, technology upgrades, and solution bundling models observed between 2023 and 2025. Coverage includes investment trends, new product introductions, and R&D roadmaps, such as hybrid interrogators, low-power modules, AI embedding, and advanced fiber coatings. It also provides a project pipeline database, listing over 2,000 planned DFOS projects worldwide for 2024–2027, cataloged by application and geography. The scope further touches industry drivers, restraints, challenges, and opportunities, such as technical complexity, lack of standards, and analytics integration. Additionally, the report includes market intelligence tools for B2B buyers and suppliers, including competitive benchmarking, bid pipelines, and buyer intent tracking aligned with Distributed Fibre Optic Sensor Market Forecast and Industry Analysis.

Distributed Fibre Optic Sensor Market Report Coverage

REPORT COVERAGE	DETAILS
Market Size Value In	USD 2080.42 Million in 2026
Market Size Value By	USD 6339.08 Million by 2035
Growth Rate	CAGR of 13.18% from 2026 - 2035
Forecast Period	2026 - 2035
Base Year	2025
Historical Data Available	Yes
Regional Scope	Global
Segments Covered	By Type : Rayleigh Scattering Based Distributed Sensor Brillouin Scattering Based Sensor Raman Scattering Based Sensor Interferometric Distributed Optical-Fibre Sensor Distributed Fibre Bragg Grating Sensor By Application : Strain Sensing Temperature Sensing Acoustic/Vibration Sensing Pressure Sensing Others
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